Jae-Suk Suh. 2003. The process-based writing activity framed on CALL: Its effect on writing attitudes and writing proficiency of EFL learners. Studies in Modern Grammar 32, 169-203. The paper investigated the effects of the process-based writing activity designed with the frame of CALL on both EFL learners` attitudes toward writing in English and their writing proficiency. 52 college students participated in a study in which they worked in pairs to write about a topic chosen by themselves by going through various stages of writing from the beginning to the end for six weeks. Data were collected via two differing methods: questionnaires and writing samples (i. e., first and final drafts). To find out the effect of the process-oriented writing activity within CALL on subjects attitudes toward writing in English, two differing kinds of questionnaires were administered to subjects before and after the writing activity. To determine whether the writing activity plays a facilitating role in the improvement of subjects writing activity plays a facilitating role in the improvement of subjects writing ability, 26 sets of the first and final drafts were compared analytically to each other in five aspects of writing. The results of the study indicated that though there existed some aspects of writing remaining unchanged irrespective of the writing activity, overall, subjects showed more positive attitudes toward writing in English after the writing activity than they did prior to the activity. Similarly, though subjects were not able to fully succeed in improving their writing ability in all the five aspects of writing, they did show the promotion of writing skill in such aspects of writing, as fluency, organization, and mechanics. Based on the findings, some suggestions were given for the creation of positive writing attitude and for the improvement of writing ability in EFL classrooms.